Fastening element

ABSTRACT

A fastening element ( 1 ) including a rear grip member ( 11 ) for introduction into the longitudinal spaces ( 17 ) of the mounting rail ( 2 ), in the transport position, and for gripping of holding projections ( 6.1, 6.2 ) arranged in the mounting rail ( 2 ), in the securing position, and a stop ( 12 ) for the front external contact of the mounting rail ( 2 ). The stop ( 12 ) is connected to the rear grip member ( 11; 31; 52; 64 ) by a screw ( 13 ). A spacer element ( 14 ) is arranged with two projections ( 15.1, 15.2 ), between the stop ( 12 ) and the rear grip member ( 11 ), for temporary fixing of the rear grip element ( 11 ), in the transport position. The projections ( 15.1, 15.2 ) are mounted spring-biased on the spacer element ( 14 ).

BACKGROUND OF THE INVENTION

The invention relates to a fastening element, in a rear grip part, forintroduction into a mounting opening of a hollow body, in a firstposition, and for rear gripping of a mounting projection arranged in ahollow body, in a second position. The fastening element has at leastone stop for frontal external loading of the edges of the hollow bodylongitudinal walls along the mounting opening, whereby the stop isconnected with the rear grip part by a fastening means. A spacer elementhaving at least one securing means arranged for temporary fixing of therear grip part in a first and/or in the second position is arrangedbetween the stop and the rear grip part.

Fastening elements of the aforementioned type are used for fastening anobject on a C-shaped mounting rail. The mounting rail used for thispurpose can be fastened to a surface. The fastening element isintroduced into the mounting opening and turned by a rotary movement by90° such that the rear grip part of the fastening element grips behindthe mounting projections of the mounting rail. In this preliminaryfixing, it is possible to displace the fastening element longitudinallyalong the mounting rail for the purpose of adjustment. In order toeffect a final fastening of the fastening element on the mounting rail,the rear grip part is clamped relative to the stop by a threaded rod andthus clamped on the mounting projections. This type of fastening elementis suitable for fastening elongated objects or conduit lines, such aspipes or the like.

This type of fastening element is disclosed in DE 100 52 534 A1. Apre-loaded spring element is arranged between the nut element and thestop to make a preliminary fixation of the known fastening element. Itspositions can be precisely established by virtue of a coupling betweenthe stop and the rear grip member. The spring element has the effectthat the rear grip member is pulled up against the stop and the mountingprojections are accordingly gently clamped between the rear grip memberand the stop.

The drawback of the prior art solution is that the known fasteningelement comprises a number of co-operating elements and is expensive tomanufacture.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a fastening elementhaving a rotatable rear grip member, which allows pre-fixing, whichassures correct positioning of the rear grip member relative to theholding projections. Furthermore, the fastening element is intended tocomprise few parts that are simple to manufacture. Furthermore, thefastening element is intended to be easy to manage and allow simpleassembly.

The object is achieved by the invention which comprises a fasteningelement, a rear grip part for introduction into a mounting opening of ahollow body, in a first position, and for rear gripping of mountingprojections arranged in a hollow body, in a second position. Thefastening element further has at least one stop for frontal externalloading of the edges of the hollow body longitudinal walls along themounting opening, whereby the stop is connected with the rear grip partby means of a fastening means. A spacer element having at least onesecuring means arranged for temporary fixing of the rear grip part in afirst and/or in the second position is arranged between the stop and therear grip part. The securing element is spring load mounted on a springloaded element on the spacer element.

In the fastening element according to the invention, the function of aspring element and a coupling are combined by the spacer element and thespring-loaded securing means mounted on the spacer element. The spacerelement is configured on the rear grip member. At the time ofintroducing the rear grip member into the mounting opening of the hollowbody, the fastening element is held in a first position, the so-calledtransport position. The stop encloses the hollow body at least in partsuch that on turning of the fastening element, the rear grip part isbrought into a second position, the so-called securing position. Whenthis is done, the securing means is also co-rotated. In the securingposition, the rear grip member is preferably oriented such that it gripsbehind the mounting projections disposed in the hollow body. In avariant, the spacer element can be configured on the stop instead of onthe rear grip member.

The securing means is mounted on at least one web, which is formed onthe spacer element and is used as a spring-loaded element for thesecuring means. Preferably, a securing means is mounted on two webs thatare disposed opposite each other and essentially permit only onemovement of the securing means in one direction. Instead of webs, abracket can be provided for the function of the spring-loaded element onthe spacer element.

The distance between the stop and the rear grip member in the transportposition is greater than the extent of the mounting projections of thehollow body in the sense perpendicular to the stop. In the securingposition, the distance between the stop and the rear grip member ispreferably only the extent of the mounting projections. Accordingly, apre-fixing of the fastening element is provided and the fasteningelement can, if required, be displaced along the mounting opening untilthe desired position along the length of the hollow body is reached. Byclamping the fastening element, the rear grip member moves in thedirection of the stop until the rear grip member clamps with the holdingprojections and accordingly the fastening element is fixed to the hollowbody. The fastening element according to the invention is used formounting of a mounting member on a so-called C-shaped mounting rail thatpreviously has been attached to a structural part.

The rear grip member is preferably attached to the stop using a bolt,whereby the rear grip member is friction-locked or force-locked and thestop is rotationally connected to the bolt. The bolt preferably has atorque transmission means at the end facing away from the rear gripmember, which protrudes at least in part over the stop. The bolt isconfigured as a screw with a hexagonal screw head.

Preferably, the spacer element is configured as a separate part.Accordingly, the manufacturing cost of the stop and of the rear gripmember of the fastening element is substantially reduced relative to adesign, in which the spacer element is formed directly on the stop or onthe rear grip member. In addition, the fastening element is easier toimplement and use. By means of different designs spacer elements,especially with the variation in height of the spacer element, thefastening element can be used in differently configured hollow bodiesand mounting rails only by replacing the spacer element.

Preferably, the at least one securing means comprises a projection forengaging in at least one holder configured as a complementary securingmeans in a recess formed as a complemenatry securing means, wherein thesecuring means and the complementary securring menas co-operateform-locked in the first and/or second position. By virtue of the axialmovement of the fastening element perpendicular to the stop, thefastening element is adjustable between the first position serving asthe transport position and at least one other position serving as thesecuring position. The securing means are configured to be spring-biasedon the spacer element if the form-locking connection in the transportposition becomes loose at the time of a rotational movement of thefastening element. If the complementary securing means are configured asrecesses, upon loosening of the connection between the securing meansand the complementary securring means, a sensory perception of thisoperation occurs. The complementary securing means can also be arrangedsuch that upon reaching the securing position, the securing means lockinto the corresponding recess.

In lieu of a recess, the complementary securing means can be configuredas mounting devices. For example, if at least one projection is providedin the form of a discoid circular ring segment on the stop, at which thefirst position, or in the transport position, a securing means providedwith a groove engages in the projection. Preferably, at least twoprojections are provided on the stop. In a variant, two projections areprovided on the stop, which run the half periphery and rise helically.In this context, “helically” is defined in that the distance between theupper edge of the projection diminishes consistently in the direction ofrotation towards the stop. When rotating the fastening means, the reargrip member is brought out of the securing position, whereby thesecuring means and consequently the rear grip member during positionchangeover diminishes its distance to the stop continuously until therear grip member is pre-fixed at the mounting projections.

Advantageously, at least double as many complementary securing means areprovided at the stop as securing means on the spacer element forproducing at least the transport position and the at least one securingposition of the fastening element. When introducing the relativemovement perpendicular to the stop, the form-locking connection in thetransport position as a result of the spring-loaded mounting of thesecuring means on the spacer element and upon reaching the securingposition, which corresponds to the position relative to the rear gripmember of the mounting projections provided in the hollow body of therear grip member, the securing means lock into the corresponding recess.In this design of the fastening element, the user is provided with asense of security in the certainty that the rear grip member forgripping the mounting projections disposed in the hollow body arecorrectly aligned.

Preferably, the securing projections are configured as two opposinglyarranged projections, which, in the first position, engage form-lockingin two recesses of the connection, whereby the recesses receive theprojections only in part. Using securing means configured asprojections, a high degree of reliability against accidental looseningof the form-locking connection between the projections and the recessesis produced. Because the recesses only partially receive theprojections, this form-locking connection can be released without greateffort, when the rear grip member by means of a rotational movement isbrought from the first position into the second position. In order toreduce the resistance of the form-locking connection at the time of arotational movement of the fastening means and to thus facilitate theuse of the fastening element for the user, the recess can have aramp-like flattening at least in the rotational direction of thefastening element, which continuously reduces the depth of the recess.

Preferably, the complementary securing means defining the first positionor the transport position have a depth X for the securing means and thecomplementary securing means defining the second position or thesecuring position have a depth greater than the depth X. This preferredembodiment of the complementary securing means makes it possible for thedistance between the stop and the fastening element to be smaller in thesecuring position than in the transport postion. Consequently, thegripping action of the rear grip member is supported in the securingposition. If the mounting opening of the hollow body is configured as aslit running the length of the hollow body such as in the case of aC-shaped mounting rail, the arrangement of complementary securing meansis required only in the transport position. If the fastening element isbrought from the first position into the second position, the securingprojections of the spacer element are in the plane of the mountingopening. Since the securing projections in this position do not contactany element, the distance between the stop and the rear grip member isreduced to the existing distance as the result of the height of thespacer element, whereby the rear grip member can grip the mountingprojetions.

Advantageously, the spacer element is configured as an essentiallyannular element, which is arranged on the side of the fastening elementfacing away from the rear grip member. The spacer element is fixed onthe rear grip member or fixed on the stop. The rotational resistance ofthe spacer element to the part on which the spacer element is arrangedis preferably assured using securing elements that engage incomplementary securing elements. In a variant, the spacer element can bestamped or molded to create a resistance to rotation between the spacerelement and the other part.

Preferably, the spacer element has an elastic, optionally two clipsarranged diametrically opposed to each other, that are tightened in thesecond position or in the securing position of the fastening element onthe holding projections vertical to the stop. The clip(s) are configuredas loops that have a specific deformability. Upon rotating the fasteningmeans, the rear grip member is moved out of the transport position. Oncethe resistance increases, when turning the fastening means, the userknows that the rear grip member is oriented for gripping behind theholding projections. This embodiment is advantageous, if nocomplementary securing means are provided for the securing means in thesecuring position.

Preferably, the clip has an integrated stop. Using these clips, anunintentional excessive rotation of the fastening element at the time ofassembly is prevented, since the integrated stop preferably producessuch a high resistance at the time of deforming the clip, that thelatter cannot be overcome with simple means.

The spacer element is advantageously manufactured in one piece with thesecuring means or with the spring-resilient elements. Prefrably, thedistance part is made of a plastic in an injection mold proess. In avariant, the spacer part can be made out of sheet metal or in astamping/bending process. Furthermore, the spacer element can beassembled from a plurality of parts, whereby different materials can becombined.

BRIEF DESCRIPTION OF THE DRAWINGS

Other advantageous embodiments and combinations of features of theinvention will become apparent from the following detailed descriptionwith reference to the drawings, wherein:

FIG. 1 a shows a section through the fastening element according to theinvention, in the transport position;

FIG. 1 b shows the fastening element of FIG. 1 a, in the securingposition;

FIG. 2 shows a view onto the rear grip part with the spacer elementaccording to the invention;

FIG. 3 shows a view onto the rear grip member with an additional spacerelement according to the invention, in the clamped condition;

FIG. 4 shows a view onto the spacer element according to the invention;

FIG. 5 shows a section through the spacer element according to theinvention along the line V-V of FIG. 4;

FIG. 6 shows a section through the spacer element according to theinvention along the line VI-VI of FIG. 4;

FIG. 7 shows a section through another embodiment of the fasteningelement according to the invention;

FIG. 8 shows a section through another embodiment of the fasteningelement according to the invention; and

FIG. 9 shows a section through the fastening element according to theinvention along the line IX-IX of FIG. 8.

DETAILED DESCRIPTION OF THE INVENTION

In principle, in the figures identical parts are identified usingidentical references. FIG. 1 a shows a section through the fasteningelement according to the invention, in the transport position, and FIG.1 b shows the fastening element in the secured position. The fasteningelement 1 is arranged in a C-shaped mounting rail 2. The mounting rail 2has a floor 3 and two side walls 4.1 and 4.2 arranged perpendicular tothe floor 3 and running parallel to each other. The free edge of theside wall 4.1 and the free edge of the side wall 4.2 are deflectedinwardly such that a support surface 5.1 or 5.2 and a holding projection6.1 or 6.2 are formed. The free edges of the holding projections 6.1 and6.2 are provided with knurling.

The fastening element 1 comprises a back grip member 11 and a stop 12,which are connected by the screw 13. The back grip part 11 has an insidethread in which the outer thread of the screw 13 engages. The stop 12 isprovided with an opening, through which the screw can be pushed. Betweenthe stop 12 and the back grip member 11, the spacer element 11 is fixedon the back grip member 11.

The spacer element 14 has spring-biased projections 15.1 and 15.2 thatengage in the recesses 16.1 and 16.2. With the form-locked connectionbetween the projection 15.1 and the recess 16.1 as well as theprojection 15.2 with the recess 16.2, the transport position of thefastening element 1 is defined and secured. In the transport position,the fastening element 1 can be mounted and can be introduced into themounting rail 2. In this position of the fastening element 1, the reargrip member 11 is introduced through the longitudinal opening 17 intothe mounting rail 2 up to the stop 112 on the support surfaces 5.1 and5.2. In the transport position, the spacer element 14 holds the reargrip member 11 in a distance H to the stop 12, which is greater than theextent T of the holding projections 6.1 and 6.2, in the direction of thefloor 3 of the mounting rail 2.

Using a rotary movement on the screw 13, the rear grip member 11 turnsin the mounting rail 2 until the rear grip member 11 is in the securedposition of the fastening element 1, as is shown in FIG. 1 b. At thestop 12, in addition to the recesses 16.1 and 16.2, the recesses 18.1and (not shown here) 18.2 are provided, in which the projections 15.1and 15.2 can engage. The diametrically opposing recesses 18.1 and 18.2are rotated relative to the diametrically opposing recesses 16.1 and16.2 by 90° at the stop 12 and configured deeper (X1) than the recesses16.1 and 16.2.

In order to facilitate the position changeover between the transportposition and the secured position the flanks of the recesses 16.1, 16.2,recesses 18.1 and 18.2 are inclined such that, in the direction of therotational movement for tightening the fastening means, a lesser rotaryexpenditure is required for the position change than in the reverserotation for loosening the fastening means. In addition, the spacer part14 has the clips 19.1 and 19.2, which tighten with the holdingprojections 6.1 and 6.2 in the securing position of the fasteningelement 1.

FIG. 2 shows a view onto the rear grip member having the spacer elementaccording to the invention. The rear grip member 11 is provided with theknurlings 21.1 and 21.2, which can be brought into engagement at theholding projections 6.1 and 6.2, in the securing position of thefastening element 1. The extension B of the spacer element 14 from theouter edge of the clip 19.1 to the outer edge of the clip 19.2 isgreater than the inner distance A between the holding projections 6.1and 6.2 of the mounting rail 2, such that the spacer element 14 tightensat the holding projections 6.1 and 6.2 in the securing position of thefastening element 1 in the secured position.

FIG. 3 shows a view onto a rear grip member with an additional spacerelement according to the invention in the tightened condition. The reargrip member 31 also has two knurlings 32.1 and 32.3, which can bebrought into engagement with the knurlings on the holding projections6.1 and 6.2. The spacer element 33 arranged on the rear grip elemetn 31has two clips 34.1 and 34.2. The member 35.1 of the clip 34.1 and themember of the clip 34.2, each of which are arranged in thecounter-rotational direction of the fastening element, is more massivethan the corresponding other member of the clip 34.1 or 34.2. Whentightening the spacer element on the holding projections, the clipsegments 35.1 and 35.2 acting as integrated stops, a difficult toovercome resistance is created using simple means. This embodimentprovides the user with a high degree of security regarding the effectiveposition of the rear grip member 31 in the mounting rail 2. At the sametime, over turning of the fastening element at the time of positionchange from the transport to the secured position is substantiallyprevented.

FIG. 4 shows a view onto the spacer element according to the invention.The spacer element for arrangement on a rear grip member is made ofplastic in an injection molding process.

FIG. 5 shows a section through the spacer element according to theinvention along the line V-V of FIG. 4. The spacer element 14 has acirculo-cylindrical base body 41 and two securing projections 15.1 and15.2. The webs 43.1 and 43.2 as well as the webs 44.1 and 44.2 each formthe spring-biased element for spring-biased mounting of the projections15.1 and 15.2 on the base body 41 of the spacer element 14. In order toassure the rotational resistance between the rear grip part and thespacer element 14, four detent elements 42.1, 42.2, 42.3 and 42.4 areconfigured as projections on the base body, which engage incorrespondingly arranged complementary securing elements configured asrecesses on the rear grip member.

FIG. 6 shows a section through the spacer element according to theinvention along the line VI-VI in FIG. 4. The user of the fasteningelement perceives indication of the positioning of the rear grip membertactily and, if appropriate, also acoustically through locking in of theprojections 15.1 and 15.2 in the recesses defining the securing positionon the stop. The clips 19.1 and 19.2 clamping on the holding projections6.1 and 6.2 serve only as an additional assurance in the assembly of thefastening element. Insofar, however, no recesses are provided on thestop in the secured position, the clips 19.1 and 19.2 are secured bytheir clamping with the holding projections 6.1 and 6.2 in the correctpositioning of the rear grip member for gripping the holding projections6.1 and 6.2 when tigthening the fastening element. The extension intothe width B of the spacer element 14 from the outer edge of the clip19.1 to the outer edge of the clip 19.2 is thus greater than thedistance A of the inner edge of the holding projections 6.1 and 6.2among each other of the hollow body.

FIG. 7 shows a section through another embodiment of the fasteningelement according to the invention. The fastening element 51 comprises aback grip member 52 and a stop 53, which are connected by the screw 54.Between the rear grip member 52 and the stop 53, the spacer element 55is provided, which is fixed with the rear grip member 52. Two connectionsections 56.1 and 56.2 are arranged with disk-like and annularprotrusion on the stop 53, whereby the projections 57.1 and 57.2 engagethese connection sections 56.1 and 56.2 in the transport position of thefastening element. The projections 57.1 and 57.2 are mountedspring-biased on the base body 58 of the spacer element 55. If thefastening element 51 of the transport position is brought into thesecured position by turning the screw 54, the projections 57.1 and 57.2glide along the connection sectons 56.1 and 56.2. Before reaching thesecured position, the connection sections 56.1 and 56.2 terminate suchthat the projections 57.1 and 57.2, upon further turning of the screw54, move in the direction of the stop 53 and the distance between therear grip member 52 and the stop 53 is diminished. The rear grip member52 grips the holding projections of the hollow body and the fasteningelement is pre-fixed in the hollow body.

FIG. 8 shows a section through another embodiment of the fasteningelement according to the invention. The fastening element is configuredas a rail nut 61 for fastening the L-shaped bracket 62 to the mountingrail 63. The rail nut 61 comprises a back grip member 64 and a stop 65,which are connected by the screw 66. The spacer element 67 is providedbetween the rear grip member 64 and the stop 65. The spacer element 67has projections 68.1 and 68.2, which engage in recesses 69.1 and 69.2 atthe stop 65 and which define the transport position of the rail nut 61.The recesses 70.1 and 70.2 are rotated by 90° relative to the recesses70.1 and 70.2, which define the secured position of the rail nut 61. Ashaft 71 is formed on the stop 65, which bridges the sheeting thicknessof the bracket 62 up to the support edge of the mounting rail 63. Themounting rails 63 can be connected with each other using the bracket 62.The bracket 62 is provided with two openings 72.1 and 72.2, throughwhich the rear grip member 64 of the rail nut 61 can be introduced intothe mounting rail 63. Two tabs 73.1 and 73.2 oriented against the stop65 are formed on the spacer element 67, which hook up with thelongitudinal edges of the opening 72.1 at the time of insertion of therail nut 61 into the mounting rail 63. Accordingly, the distance betweenthe rear grip member 64 and the stop 65 is accommodated, which allows arotation of the rear grip member 64 on the inside of the mounting rail63. Furthermore, the tabs 73.1 and 73.2 make possible a pre-fixing ofthe rail nut 61 to the bracket 62 before assembly of the bracket 62 onthe mounting rail 63.

FIG. 9 shows a section through the fastening element according to theinvention along the line IX-IX of FIG. 8. The stop 65 is adapted to thecontour of the opening 72.1 and 72.2 so that a form-locking connectionbetween the rail nut 61 and the bracket 62 is provided. The spacerelement 67 has two deformable clips 74.1 and 74.2, which clamp, in thesecured position of the rail nut 61, with the holding projections 75.1and 75.2 on the inside of the mounting rail 63.

In sum, the fastening element according to the invention allows apre-fixing, which assures a correct positioning of the rear grip membervis-à-vis the holding projections, whereby the fastening elementcomprises parts that are few in number and easy to manufacture. Thefastening element is easy to handle at the time of use and makes simpleand secure assembly possible.

1. A fastening element having a rear grip member (11; 31; 52; 64) forintroduction into a mounting opening (17) of a hollow body (2; 63), in afirst position, and for gripping holding projections (6.1, 6.2; 75.1,75.2) arranged in the hollow body (2; 63), in a second position, and atleast one stop (12; 53; 65) for front outward biasing the edges (5.1,5.2) of the hollow body longitudinal walls abutting the mounting opening(17), wherein the stop (12, 53, 65) is connected with the rear gripmember (11; 31; 52; 64) by a fastener means (13; 54; 66), wherein aspacer element (14, 33, 55, 67) having at least one securing means(15.1, 15.2, 57.1, 57.2; 68.1, 68.2) is arranged between the stop (12.53; 65) and the rear grip member (11; 31; 52; 64) for temporary fixingof the rear grip element (11; 31; 52; 64) in at least one of the firstposition and the second position, and wherein each of the securing means(15.1, 15.2; 57.1, 57.2; 68.1, 68.2) is mounted spring-biased on thespacer element (14; 33; 55; 67).
 2. The fastening element of claim 1,wherein the spacer element (14; 33; 55; 67) is a separate part.
 3. Thefastening element of claim 1, wherein the at least one securing means(15.1, 15.2, 57.1, 57.2; 68.1, 68.2) comprises a projection for engagingin at least one holder (56.1, 56.2) including a complementary securingmeans, for example a recess (16.1, 16.2, 18.1, 18.2; 69.1, 69.2, 70.1,70.2), wherein the securing means (15.1, 15.2; 57.1, 57.2; 68.1, 68.2)and the complementary securing means (16.1, 16.2, 18.1, 18.2; 56.1.56.2; 69.1, 69.2, 70.1, 70.2) co-operate form-locking in at least one ofthe first and the second position and wherein the securing means (15.1,15.2; 57.1, 57.2; 68.1, 68.2) and the complementary securing means(16.1, 16.2, 18.1, 18.2; 56.1. 56.2; 69.1, 69.2, 70.1, 70.2) can be, byvirtue of an axial movement of the fastening means (13; 54; 66),positioned perpendicular to the stop (12; 53; 65), the fastening element(1; 51; 61) between the first position and the position serving as thetransport position, and at least one other position serving as asecuring position.
 4. The fastening element of claim 3, wherein at leastdouble as many complementary securing means (16.1, 16.2, 18.1, 18.2;69.1, 69.2, 70.1, 70.2) are provided on the stop (12; 65) as securingmeans (15.1, 15.2; 68.1, 68.2) on the spacer element (14;33;67) forproducing at least the transport position and the at least one securingposition of the fastening element (1; 51; 61).
 5. The fastening elementof claim 1, wherein the securing means are two projections (15.1, 15.2;68.1, 68.2) arranged diametrically opposed on the spacer element (14;33; 67) that, in the first position, engage form-locking in two recesses(16.1, 16.2; 69.1, 69.2) of the connection, wherein the recesses (16.1,16.2; 69.1, 69.2) receive the projections (15.1, 15.2; 68.1, 68.2) onlyin part.
 6. The fastening element of claim 3, wherein the complementarysecuring means (16.1, 16.2; 69.1, 69.2) defining one of the firstposition and the transport position have a depth X for the securingmeans (15.1, 15.2; 68.1, 68.2), and the complementary securing means(18.1, 18.2; 70.1, 70.2) defining one of the second position and thesecuring position have a depth (X1) greater than the depth (X).
 7. Thefastening element of claim 1, wherein the spacer element (14; 33; 55;67) is an essentially annular element arranged on the side of thefastening element (1; 51; 61) facing away from the rear grip member (11;31; 52; 64).
 8. The fastening element of claim 1, wherein the spacerelement (14; 33; 55; 67) has spring biased, two clips (19.1, 19.2; 34.1,34.2; 74.1, 74.2) that, in one of the second position and the securingposition, clamps the fastening element (1; 51; 61) to the holdingprojections (6.1, 6.2; 75.1, 75.2) perpendicular to the stop (12; 53;65).
 9. The fastening element of claim 8, wherein the clip (34.1, 34.2)has an integrated stop (35.1, 35.2).
 10. The fastening element of claim1, wherein the spacer element (14; 33; 55; 67) forms one piece with thesecuring means (15.1, 15.2; 57.1, 57.2; 68.1, 68.2) and thespring-biased elements (43.1, 43.2, 44.1, 44.2).
 11. The fasteningelement of claim 3, wherein the complementary securing means (16.1,16.2, 18.1, 18.2; 69.1, 69.2, 70.1, 70.2) is a recess.
 12. The fasteningelement of claim 10, wherein the spacer element (14; 33; 55; 67) is madeof a plastic.
 13. The fastening element of claim 8, wherein the springbiased, two clips (19.1, 19.2; 34.1, 34.2; 74.1, 74.2) are arrangeddiametrically opposed to each other.